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Multiple-models predictions for drip line nuclides in projectile fragmentation of^(40,48)Ca,^(58,64)Ni,and^(78,86)Kr at 140 MeV/u

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Nuclear Science and Techniques 2022年第12期33卷 49-58页

作者： Xiao-Bao Wei Hui-Ling Wei Yu-Ting Wang Jie Pu Kai-Xuan Cheng Ya-Fei Guo Chun-Wang Ma College of Physics Henan Normal UniversityXinxiang 453007China

Modern rare isotope beam(RIB)factories will significantly enhance the production of extremely rare isotopes(ERI)at or near drip *** one of the most important methods employed in RIB factories,the production of ERIs in projectile fragmentation reactions should be theoretically improved to provide better guidance for experimental *** cross-sections of ERIs produced in 140 MeV/u^(78,86)Kr/^(58,64)Ni/^(40,48)Ca+9Be projectile fragmentation reactions were predicted using the newly proposed models[i.e.,Bayesian neural network(BNN),BNN+fracs,and fracs,see ***.C,46:074104(2022)]and the frequently used EPAX3 *** a minimum cross-section of 1015 mb,the possibilities of ERIs discovery in a new facility for rare isotope beams(FRIB)are discussed.

关键词： Bayesian neural network(BNN) fracs Drip line Extremely rare isotope Projectile fragmentation

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Cross-section prediction for isotopes near neutron drip line in 70, 80Zn projectile fragmentation reactions

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Chinese Physics C 2019年第7期43卷 48-52页

作者：魏慧玲宋一丹马春旺李志宏苏俊 College of Physics Henan Normal UniversityXinxiang 453007China Institute of Particle and Nuclear Physics Henan Normal UniversityXinxiang 453007China Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201800China Institute of Nuclear Physics Chinese Institute of Atomic EnergyBeijing 102413China Institute of Nuclear Science and Technology Beijing Normal UniversityBeijing 100875China

The cross sections for 59,60Ca, recently measured in the 345 A MeV 70Zn+9 Be reaction,were estimated using the fracs parametrization and an empirical formula,which are in good *** fracs parametrization and the empirical formula are combined to predict the cross sections for extreme calcium isotopes 66,70Ca in the70,80Zn+9 Be reactions at the incident energies of 60,80,and 345 A *** dependence of emperical formula parameters on the reaction system,as well as the incident energy,are *** results indicate that 66,70Ca can be discovered in reactions of 60,80A MeV 80Zn+9 *** predicted binding energy for extreme neutron-rich isotopes by the spherical relativistic continuum Hartree-Bogoliubov theory was adopted in the ***,the planned Beijing Isotope-Separation-On Line Neutron-Rich Beam Facility(BISOL),which is a third generation radioactive ion beam facility,could provide the opportunity to discover 66,70 Ca and neighboring neutron-drip line nuclei.

关键词： neutron-drip line projectile fragmentation fracs cross section Ca-60 Ca-70

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